Impact detection device for a traction battery of a motor vehicle and motor vehicle with an impact detection device

Patent metadata

Field	Value
Publication number	US-11973201-B2
Application number	US-202217696442-A
Country	US
Kind code	B2
Filing date	Mar 16, 2022
Priority date	Mar 17, 2021
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

An impact detection device for a traction battery of a motor vehicle includes at least one air-filled chamber formed on an underbody element for the traction battery. An air-filled chamber is at least laterally sealed to outside and defined by a sealing material. A pressure hose and an introduction element for the pressure hose can be provided, wherein the air-filled chamber can be coupled to a pressure sensor through the pressure hose, and the introduction element can be attached to the underbody element and formed to couple the pressure hose to the air-filled chamber through the sealing material in a set position. The introduction element can be embedded by the sealing material which seals the air-filled chamber.

First claim

The invention claimed is:

1. An impact detection device for a traction battery of a motor vehicle with an underbody element for the traction battery, the impact detection device comprising:
at least one air-filled chamber formed on the underbody element, an air-filled chamber, among the at least one air-filled chamber, being at least laterally sealed to outside by a sealing material;
a pressure hose; and
an introduction element,
the air-filled chamber coupled to a pressure sensor through the pressure hose,
the introduction element attached to the underbody element and formed to couple the pressure hose to the air-filled chamber through the sealing material in a set position, and
the introduction element embedded by the sealing material which seals the air-filled chamber.

2. The impact detection device according to claim 1 , wherein the introduction element comprises a basic body, by which a cylindrical passage channel for introducing the pressure hose is formed.

3. The impact detection device according to claim 2 , wherein a stop for the pressure hose is arranged in the cylindrical passage channel.

4. The impact detection device according to claim 1 , wherein an air-permeable filter element is arranged in the introduction element, wherein the filter element is suitable as a dirt filter.

5. The impact detection device according to claim 4 , wherein the filter element is formed as a grid structure.

6. The impact detection device according to claim 1 , wherein the introduction element comprises a basic body, wherein the basic body includes a semi-cylindrical recess on a top side, which is formed as a fitting connection for the pressure hose.

7. The impact detection device according to claim 1 , wherein the introduction element is formed to couple the pressure hose to the air-filled chamber at an inclination angle, wherein the pressure hose is arranged obliquely downwards towards the chamber by the inclination angle.

8. The impact detection device according to claim 1 , wherein the introduction element comprises a fixing device, which is formed to fix the pressure hose.

9. The impact detection device according to claim 1 , wherein the introduction element is attached to the underbody element by a plug connection and/or adhesive connection.

10. A motor vehicle, comprising:
a traction battery with an underbody element for the traction battery; and
an impact detection device including,
at least one air-filled chamber formed on the underbody element, an air-filled chamber, among the at least one air-filled chamber, being at least laterally sealed to outside by a sealing material,
a pressure hose, and
an introduction element,
the air-filled chamber coupled to a pressure sensor through the pressure hose,
the introduction element attached to the underbody element and formed to couple the pressure hose to the air-filled chamber through the sealing material in a set position, and
the introduction element embedded by the sealing material which seals the air-filled chamber.

11. The motor vehicle according to claim 10 , wherein the introduction element comprises a basic body, by which a cylindrical passage channel for introducing the pressure hose is formed.

12. The motor vehicle according to claim 11 , wherein a stop for the pressure hose is arranged in the cylindrical passage channel.

13. The motor vehicle according to claim 10 , wherein an air-permeable filter element is arranged in the introduction element, wherein the filter element is suitable as a dirt filter.

14. The motor vehicle according to claim 13 , wherein the filter element is formed as a grid structure.

15. The motor vehicle according to claim 10 , wherein the introduction element comprises a basic body, wherein the basic body includes a semi-cylindrical recess on a top side, which is formed as a fitting connection for the pressure hose.

16. The motor vehicle according to claim 10 , wherein the introduction element is formed to couple the pressure hose to the air-filled chamber at an inclination angle, wherein the pressure hose is arranged obliquely downwards towards the chamber by the inclination angle.

17. The motor vehicle according to claim 10 , wherein the introduction element comprises a fixing device, which is formed to fix the pressure hose.

18. The motor vehicle according to claim 10 , wherein the introduction element is attached to the underbody element by a plug connection and/or adhesive connection.

19. A device, comprising:
an air-filled chamber formed on an underbody element for a traction battery of a motor vehicle, the air-filled chamber being laterally sealed to outside by a sealing material;
a pressure hose; and
an introduction element embedded by the sealing material and formed to couple the pressure hose to the air-filled chamber through the sealing material, resulting in coupling of the air-filled chamber to a pressure sensor through the pressure hose.

Assignees

• Audi Ag
• Porsche Ag

Inventors

• Brandic Ilija
• Grupp Markus
• Rausch Julius
• Stoll Oliver

Classifications

• H01M10/48 Primary

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• B60L3/0046

  relating to electric energy storage systems, e.g. batteries or capacitors · CPC title

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• B60R21/0136

  responsive to actual contact with an obstacle {, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle (monitoring crash strength in combination with passenger seat detection B60R21/01558)} · CPC title

• B60R21/01 Primary

  Electrical circuits for triggering {passive} safety arrangements, {e.g. airbags, safety belt tighteners,} in case of vehicle accidents or impending vehicle accidents {(electrical circuits for transmission of signals between steering wheel and the vehicle itself B60R16/027; for electrically actuating belt retractor locking means B60R22/343)} · CPC title